分享每一天-php集成微信公众号sdk的参数生成

php集成微信公众号sdk的参数生成

PHP 1191 0 创建时间：2023-05-02 12:57:56

php 对象

#### php集成微信公众号sdk的参数生成
```php
<?php
class JSSDK {
        private $appId;
        private $appSecret;
        public function __construct($appId, $appSecret) {
            $this->appId = $appId;
            $this->appSecret = $appSecret;
        }
        public function getSignPackage() {
            $jsapiTicket = $this->getJsApiTicket();
            $protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://";
            $url = "$protocol$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
            $timestamp = time();
            $nonceStr = $this->createNonceStr();
            // 这里参数的顺序要按照 key 值 ASCII 码升序排序
            $string = "jsapi_ticket=$jsapiTicket&noncestr=$nonceStr×tamp=$timestamp&url=$url";
            $signature = sha1($string);
            $signPackage = array(
                "appId" => $this->appId,
                "nonceStr" => $nonceStr,
                "timestamp" => $timestamp,
                "url" => $url,
                "signature" => $signature,
                "rawString" => $string
            );
            return $signPackage;
        }
        private function createNonceStr($length = 16) {
            $chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
            $str = "";
            for ($i = 0; $i < $length; $i++) {
                $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
            }
            return $str;
        }
        private function getJsApiTicket() {
            // jsapi_ticket 应该全局存储与更新，以下代码以写入到文件中做示例
            $data = json_decode(file_get_contents("jsapi_ticket.json"));
            if ($data->expire_time < time()) {
                $accessToken = $this->getAccessToken();
                // 如果是企业号用以下 URL 获取 ticket
                // $url = "https://qyapi.weixin.qq.com/cgi-bin/get_jsapi_ticket?access_token=$accessToken";
                $url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=$accessToken";
                $res = json_decode($this->httpGet($url));
                $ticket = $res->ticket;
                if ($ticket) {
                    $data->expire_time = time() + 7000;
                    $data->jsapi_ticket = $ticket;
                    $fp = fopen("jsapi_ticket.json", "w");
                    fwrite($fp, json_encode($data));
                    fclose($fp);
                }
            } else {
                $ticket = $data->jsapi_ticket;
            } 
            return $ticket;
        }
        private function getAccessToken() {
            // access_token 应该全局存储与更新，以下代码以写入到文件中做示例
            $data = json_decode(file_get_contents("access_token.json"));
            if ($data->expire_time < time()) {
                // 如果是企业号用以下URL获取access_token
                // $url = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid=$this->appId&corpsecret=$this->appSecret";
                $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$this->appId&secret=$this->appSecret";
                $res = json_decode($this->httpGet($url));
                $access_token = $res->access_token;
                if ($access_token) {
                    $data->expire_time = time() + 7000;
                    $data->access_token = $access_token;
                    $fp = fopen("access_token.json", "w");
                    fwrite($fp, json_encode($data));
                    fclose($fp);
                }
            } else {
                $access_token = $data->access_token;
            }
            return $access_token;
        }
        private function httpGet($url) {
                $curl = curl_init();
                curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
                curl_setopt($curl, CURLOPT_TIMEOUT, 500);
                curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
                curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
                curl_setopt($curl, CURLOPT_URL, $url);
                $res = curl_exec($curl);
                curl_close($curl);
                return $res;
        }
}
```

php集成微信公众号sdk的参数生成

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